Paint spray gun



FIG. 1 is a perspective view of a paint spray gun showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevational view thereof; and

FIG. 6 is a rear elevational view thereof.

The broken line representation of a paint container in FIGS. 1 and 3 is for purposes of illustration only. _ 

The ornamental design for a paint spray gun, as shown and described. 